DELLICLA on Family Tree Circles

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I'm Larry DelliColli, my father was Siro DelliColli (Utica, NY/1914).
Paternal grandparents = Umberto DelliColli (Naples)
Antonia DiGironimo (Frozinone)
Mother------------------Ciarina (Carol) Fragola DelliColli
Maternal grandparents Francesco Fragola (Piedmonte D'Aliffe)
Adelina Grillo Fragola
I'm looking for any information on the above individuals and their respective families.
I'm having trouble getting information on Umberto. He does not appear on any records from Ellis Island. He had two brothers, Siro (remained in Italy) and Adolphus (settled in London, England after moving from Utica, NY). His son Adolph DelliColli was a pilot with the RAF during WWII/married in England with one male child.Transferred to the US Army after US entered war. Divorced and moved to NY. (remarried in US - son Robert DelliColli/changed name to DelColli.
Any informatlansion on the DelliColli, Fragola, DiGironimo and Grillo Clans in the USA, UK and Italy would help my research a great deal.